Shaping-die



(No Model.)

F. A. IDDINGS.

SHAPING DIE.

No. 304,526. Patented Sept. 2. 1884.

WITNESSES INVENTOR object being to provide dies that will overlap on theend.

- ilwrran STATES FRANK A. IDDINGS, OF WARREN, OHIO.

SHAPING-DIE.

SPECIFICATION forming part of Letters Patent 180.30%,526, datedSeptember 2, 1884 Application filed February 6, 1884. (No model.)

To all whom it may concern:

'Be it known that I, FRANK A. IDDINGS, of Warren, in the county ofTrumbull and State of Ohio, have invented certain new and usefulImprovements in Shaping-Dies; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it pertains to make and usethe same.

My invention relates to shapingdies, the

each other on the blank as they successively strike it, by means ofwhich the forging will be free from fins and other roughness.

With this object in View my invention consists in certain features ofconstruction and in combination of parts hereinafter described, andpointed out in the claim.

My improved dies are designed to be operated in that class of machinesin which seven dies usually constitute a set, and are operated in thefollowing manner: The first two are grasping-dies for holding the blank,and against-which the metal is upset in forming heads, shoulders, &c.,by an upsetting-die moving in line with the blank, and striking it Theface of this die may be fiat, concaved, crowning, or otherwise, as maybe required to shape the end of the forging as desired. The remainingfour dies are arranged in pairs that move in planes that are at rightangles to each other, the two pairs striking the blank alternately, andthe dies of each pair striking the blank simultaneously and 011 oppositesides. The dies heretofore used in this class of machines were adaptedto form bolt-heads and other angular forms, but in operating on curvedand irregular surfaces would leave ridges or fins at places where theedges of different dies struck the blank.

My improved dies are made to overlap each other on the blank, so thatportions of the blank will be operated on by two dies moving in planesthat are at right angles to each other, by means of which no fins orridges are formed, but the work, when completed, is smooth and in everyway desirable.

In the accompanying drawings, Figure 1 is a plan view of thegraspingdies, side dies, and heading or upsetting die, and an edge viewof the finished work. Fig. 2 is a plan view blank.

showing the heading-die, the edge dies, and the side of the finishedwork, and, in section, the grasping-dies. Fig. 3 is an end view of thefinished work and of the side and edge dies, and in dotted lines at thecorners the overlapping of the dies on the blank. Fig. 4. is a sideelevation of the grasping-dies when closed, and a section of the blank.Fig. 5 is an elevation of the side and face of the heading or upsettingdie.

The piece of work selected to illustrate my invention is a flatcoupling-pin for a car. The pin has rounded edges and a handle-shapedend, as shown in Figs. 1 and 2. The blanks are cut from iron of suitableshape. A transverse section of the blank used'in making this draw-pin isshown at a, Fig. 4.

A represents the grasping-dies, between which the blank to is insertedwhen the dies are open. The faces of these dies are shaped to fit'theblank, and of course are changed when a different-shaped blank isrequired.

B are the side dies that-shape the flattened sides of the work.

G are the dies that shape the edges, and D the die that upsets the blankand shapes the end thereof. If the work is round in crosssection, thefaces of the dies B and G will be alike. Any shoulders-such, forexample, as shown at aare formed against the graspingdies, first, by theaction of the upsettingdie,

and, second,-by the dies B and O,that compress the metal at other parts,leaving it free /to expand at the shoulder.

In Fig. 3, at b, are shown the corners of the dies B at the extremelimit where they engage the blank. In like manner is shown, at 0,1J11eextreme part where the dies 0 engage the Between the points I) and 0both sets of dies alternately engage the blank, so that no ridges orfins are made, but the work at these points is as smooth and wellfinished as at other parts. The overlapping corners of each die shouldbe dressed back a trifle, so that the extreme corners will not mar thework.

I11 Fig. 1 is shown the overlap of the dies B, and the die D from b to(I.

In Fig. 2 is shown the overlap of the dies 0 and the dieD from c to d.

Many different articles may be shaped and given a smooth finish by myimproved (lies.

That with the dies heretofore in use could at lap or reach beyond theline where the shapbest only be roughed out, and would require ing-diesengaged the blank, substantially as another operation to finish thework. set forth.

What I claim is In testimony whereof I sign this specifica- I 5 5 Thecombination, with grasping-dies and a tion, in the presence of twowitnesses, this series of shaping-dies arranged in pairs, each 29th dayof January, 1884. pair moving in planes at right angles to the otherpair, and each die constructed to over- FRANK A; IDDINGS' lap or reachbeyond the lines where the adj a- Witnesses: 10 cent dies engage theblank, of an upsetting- DISNEY RoGERs,

die the face of which is constructed to over- M. C. MONABB'.

